I’ve been trying many of those but failing to switch because I’m too brainwashed by bash (even zsh trips me up when some non-bashisms happen to trigger) and end

I’ve been trying many of those but failing to switch because I’m too brainwashed by bash (even zsh trips me up when some non-bashisms happen to trigger) and ended up writing one toy shell for me to peruse. Goals/Plans/Ideas/Experiments: - interactive, compatible with the subset of bash I use the most - written in Ruby, forks only when necessary (e.g for subshells uses Ruby threads and pipes to spawn and connect new Shell instances) - extensible via Ruby (i.e can define new functions in Ruby, accessible more or less directly from the shell) - fzf support - can be built against mruby to embed a Ruby VM + code in a single binary and not require any Ruby installed - can be assembled into a single .rb to easily curl it into any machine where there’s a Ruby already - no dependencies - some sort of concurrent/async evaluation for fast start, prompt, autocompletion... Still a long way to go, but I find the experience rewarding even if it ends up going nowhere.